Medicine and Health Sciences Commons^™

Exercise For Weight Loss: Further Evaluating Energy Compensation With Exercise, Kyle D. Flack, Harry M. Hays, Jack Moreland, Douglas E. Long

Dietetics and Human Nutrition Faculty Publications

PURPOSE: This study assessed how individuals compensate for energy expended during a 12-wk aerobic exercise intervention, elucidating potential mechanisms and the role exercise dose plays in the compensatory response.

PARTICIPANTS AND DESIGN: Three-arm, randomized controlled trial among sedentary adults age 18 to 40 yr, body mass index of 25 to 35. Groups included six exercise sessions per week, two sessions per week, and sedentary control.

METHODS: Rate of exercise energy expenditure was calculated from a graded exercise test averaged across five heart rate zones. Energy compensation was calculated as the difference between expected weight loss (based on exercise energy expenditure) …

The Consequences Of Exercise-Induced Weight Loss On Food Reinforcement. A Randomized Controlled Trial, Kyle D. Flack, Harry M. Hays, Jack Moreland

Dietetics and Human Nutrition Faculty Publications

BACKGROUND: Obesity remains a primary threat to the health of most Americans, with over 66% considered overweight or obese with a body mass index (BMI) of 25 kg/m2 or greater. A common treatment option many believe to be effective, and therefore turn to, is exercise. However, the amount of weight loss from exercise training is often disappointingly less than expected with greater amounts of exercise not always promoting greater weight loss. Increases in energy intake have been prescribed as the primary reason for this lack of weight loss success with exercise. Research has mostly focused on alterations in hormonal mediators …

Social Consequences Of Obesity: Case Study Of Bariatric Population At Ellis Hospital, Kara Leyden

Honors Theses

Despite the fact that the majority of adults living in the United States are overweight or obese, obesity remains a highly stigmatized physical condition. Society often sees obesity as a physical manifestation of personal faults such as the lack of self-control and laziness. Obese individuals thus experience discrimination in places of employment, have lower educational attainment, are underrepresented in popular culture, and often have difficulty finding and sustaining intimate relationships. For individuals with extreme obesity (BMI greater than 40), bariatric surgery is the most effective strategy to improve health and lose weight. Individuals who have undergone bariatric surgery typically experience …

Exploring The Relationship Between Dietary Self-Monitoring With A Mobile App And Weight Change, Jason Payne

Electronic Theses and Dissertations

Background: Approximately 70% of the adult population in the United States has overweight or obesity and increased risk for developing chronic diseases. Dietary self-monitoring adherence using a paper diary is associated with weight loss; however, few studies have examined this association with dietary self-monitoring apps. Objectives: 1) explore if an association exists between app-based dietary self-monitoring and weight change among adults with overweight or obesity and 2) explore the relationships between the frequency, consistency, and completeness of self-monitoring and weight change. Methods: Participants self-monitored dietary intake for 8 weeks using the app Calorie Counter by FatSecret. Participants were assigned …

Incentive Sensitization For Exercise Reinforcement To Increase Exercise Behaviors, Kyle D. Flack, Harry M. Hays, Jack Moreland

Dietetics and Human Nutrition Faculty Publications

Individuals can be sensitized to the reinforcing effects of exercise, although it is unknown if this process increases habitual exercise behavior. Sedentary men and women (body mass index: 25–35 kg/m², N = 52) participated in a 12-week aerobic exercise intervention. Exercise reinforcement was determined by how much work was performed for exercise relative to a sedentary alternative in a progressive ratio schedule task. Habitual physical activity was assessed via accelerometry. Post-intervention increases in exercise reinforcement predicted increases in physical activity bouts among those who expended over 2000 kcal per week in exercise and who compensated for less than …

The Effect Of Time-Restricted Feeding On Body Weight, Energy, Mood, Sleep, And Hunger Levels Of Adults On Social Media, Rachel Elizabeth Haines

Master's Theses

The purpose of this study was to investigate the effect of time-restricted eighthour feeding on body weight, self-reported energy, mood, and hunger scores, and selfreported sleep patterns of adult men and women on social media. Generally healthy adults ages 18 to 65 were invited on social media to participate in a five-week study which involved a one week of following their normal dietary patterns succeeded by four weeks of practicing time-restricted feeding of eight hours per day, also known as 16 hours of fasting. Daily surveys were created in Survey Monkey and distributed through the messaging platform, Remind, that gathered …

The Impact Of Lifestyle Medicine On Nonalcoholic Fatty Liver Disease, Kelli L. Noble

DNP Research Projects

Nonalcoholic fatty liver disease (NAFLD) is the most common liver disease worldwide. The main risk factor for the development of NAFLD is metabolic syndrome. Women are at greatest risk, typically in their 5th to 6th decade of life. The more aggressive form of NAFLD is nonalcoholic steatohepatitis (NASH) which is characterized by inflammation associated with NAFLD. NASH has the greatest tendency to progress into cirrhosis. However, lifestyle intervention has been shown to effectively treat, and even reverse NAFLD. The purpose of this quantitative, quasi-experimental study was to lend additional research and demonstrate improvement in NAFLD through lifestyle intervention with 1) …

Appetite-Regulating Hormones In Energy Compensation With Exercise, Jack Moreland

Theses and Dissertations--Nutrition and Food Systems

Background: The appetite-regulating hormones may influence compensatory increases in energy intake with exercise, although this causal relationship has been difficult to prove in a longitudinal trial.

Methods: 37 participants (29 female) aged 18 to 40 years performed aerobic exercise 6 days (6d), 2 days (2d), or 0 days per week for 12-weeks. Concentrations of ghrelin, leptin, glucagon-like peptide 1 (GLP-1), and insulin were assessed before (fasting, minute 0) and after a standardized meal at minute 15, 30, 45, 60, 90, 120, 150, and 180. Linear mixed-effects models were used to model the relationships between time point (12 weeks vs. baseline) …